1420 aluminum lithium alloy sheet plate

In 1967, it was developed successfully by the Soviet Union, which has been developed by the Soviet Union. The main products are plates, profiles, forgings and other products. The strength of the alloy is equal to 2024, the modulus of elasticity is higher, the fatigue crack growth rate is close to 2024 T3 alloy, and it has high corrosion resistance. The alloy has good weldability and can be used in contact welding, argon arc welding and electron beam welding. The cutting performance is good.

Chemical Composition of 1420 Alloy

Alloy

Si

Fe

Cu

Mn

Mg

Sc

Li

Zn

Be

Ti

Zr

Others

Al

Each

Total

1420

0.15

0.20

－

－

4.5~6.0

0.005Be

0.9~2.3

0.05

0.0005Na

－

0.008~1.5

0.05

0.15

Remainder